I don't know whether I like this idea or not, but creating another 1,760 acres of Manhattan is certainly a bold play. I wonder how feasible this really is from a number of perspectives (engineering, cost, environmental, political)... but even if it was, I'm pretty sure it would just turn into a rich-person land grab and any social benefits would fall by the wayside in the rush to make a buck—or several billion—out of it.